1. A polygenic trait is regulated by more than one gene. The phenotype of the organism is regulated by sum total of all the dominant alleles of these genes. Therefore, these traits exhibit continuous variations and are called quantitative traits. Skin color in humans is an example as it is regulated by more than one genes and the phenotype is determined by total dominant alleles of these genes.
2. If allele R gives red phenotype and the W gives white phenotype, a cross between RR (red) and WW (white) would produce all the cows with RW genotype. The parent cow with RR genotype would form all the gametes with R allele while all the gametes from WW parent would have one copy of the W allele. The random fusion of gametes with R and W alleles would produce progeny with RW genotype.
The enzymatic breakdown of any type of food molecule is called ________. A. diffusion
B. active transport
Hydrolysis occurs in the presence of enzymes (organic compounds that generally increase the rate of chemical reactions) called hydrolases.What is the hydrolysis?
It is a basic process of digestion and consists of the addition of water molecules to polysaccharide, fat or protein by specific enzymes that convert it into glucose, fatty acid and amino acid, respectively.Characteristics of hydrolysis
Therefore, we can conclude that digestion consists of hydrolysis, a water molecule is introduced to break bonds in large molecules by the action of specific enzymes.
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What are some ways that people have utilized rocks
As hammers, and other weapons
Essential nutrients a. are made by the body
b. can only be supplied adequately with dietary supplements
c. must be obtained through diet
d. consist of over 75 different types of nutrients
The main purpose of DNA is to store information. Where is information stored within a DNA molecule? A- In the phosphate groups
B-In a nucleotide
C-In the deoxyribose
D-In the sequence of nitrogen bases